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GB1114523A - Improvements in or relating to invertor circuit arrangements - Google Patents

Improvements in or relating to invertor circuit arrangements

Info

Publication number
GB1114523A
GB1114523A GB2946764A GB2946764A GB1114523A GB 1114523 A GB1114523 A GB 1114523A GB 2946764 A GB2946764 A GB 2946764A GB 2946764 A GB2946764 A GB 2946764A GB 1114523 A GB1114523 A GB 1114523A
Authority
GB
United Kingdom
Prior art keywords
inverter
scr2
scr1
supply
main
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB2946764A
Inventor
Monty David Berlock
Robert Ritchie
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Plessey UK Ltd
Original Assignee
Plessey UK Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Plessey UK Ltd filed Critical Plessey UK Ltd
Priority to GB2946764A priority Critical patent/GB1114523A/en
Publication of GB1114523A publication Critical patent/GB1114523A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/10Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers
    • H02H7/12Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers
    • H02H7/122Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers for inverters, i.e. DC/AC converters
    • H02H7/1222Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers for inverters, i.e. DC/AC converters responsive to abnormalities in the input circuit, e.g. transients in the DC input
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
    • H02M7/42Conversion of DC power input into AC power output without possibility of reversal
    • H02M7/44Conversion of DC power input into AC power output without possibility of reversal by static converters
    • H02M7/48Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/505Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means
    • H02M7/515Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only
    • H02M7/5152Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only with separate extinguishing means

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Inverter Devices (AREA)
  • Power Conversion In General (AREA)

Abstract

1,114,523. Inverting. PLESSEY-UK Ltd. 3 Sept. 1965, [20 July, 1964], No. 29467/64. Heading H2F. Protection against variation in the input supply voltage to an inverter 1 is effected by a circuit which prevents triggering of the inverter switching elements SCR1, SCR2. As shown, a control circuit for the inverter includes a pulse generator 6 which supplies gate signals to the main inverter elements SCR1, SCR2, and also to a commutating element SCR3 The supply to the gates of SCR1 and SCR2 is connected via a saturable transductor 8 which is controlled in dependence on the input supply detected at 9. In a modification (Fig. 4, not shown), a pulse derived when a main element fires, and a signal derived from the input voltage detector, are combined in an "AND " gate which operates to fire a thyristor short-circuiting the supply to the gates of the main elements. The inverter switching elements may be thermionic valves or thyristors.
GB2946764A 1964-07-20 1964-07-20 Improvements in or relating to invertor circuit arrangements Expired GB1114523A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2946764A GB1114523A (en) 1964-07-20 1964-07-20 Improvements in or relating to invertor circuit arrangements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2946764A GB1114523A (en) 1964-07-20 1964-07-20 Improvements in or relating to invertor circuit arrangements

Publications (1)

Publication Number Publication Date
GB1114523A true GB1114523A (en) 1968-05-22

Family

ID=10292022

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2946764A Expired GB1114523A (en) 1964-07-20 1964-07-20 Improvements in or relating to invertor circuit arrangements

Country Status (1)

Country Link
GB (1) GB1114523A (en)

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